9mm AR-15 LOWER RECEIVERS

The field of available dedicated 9mm AR-15 LOWER RECEIVERS is growing at a reasonably fast pace.That said it’s important to remember that you do not need a dedicated 9mm AR-15 lower to have an 9mm AR-15. For starters you can buy some Olympic Arms 9mm AR-15 Magazines that work directly in a standard AR-15 magwell. The positive side to this system is that an upper receiver swap is all that is required to switch between 9mm AR-15 and standard AR-15 configuration. The down side of the Olympic Arms system is the magazines are proprietary and heavy. The other option is to use a 9mm magwell conversion block. The 9mm conversion block comes in two styles. One locks into the AR-15 magazine well like a typical rifle magazine. The other style drops in the magwell from the top of the receiver. I prefer this style as. Hahn makes the most reliable of both styles. These 9mm AR receiver conversion units typically use Colt style 32 round magazines based on modified uzi magazines.

DEDICATED 9mm AR-15 LOWER RECEIVERS – 9mm CONVERSION BLOCK STYLE

Dedicated 9mm AR-15 LOWER RECEIVERS come in a couple different variations. The first and most common style of dedicated AR-15 9mm lower receiver essentially has a HAHN conversion block built in and typically uses the same 32 round Colt magazines mentioned above. A couple of examples of these 9mm lowers would be JP Rifles GMR 13, CMMG MK9 SMG dedicated 9mm lowers, Orion and Colt 9mm lowers if you can locate them.

DEDICATED 9mm AR-15 LOWER RECEIVERS – GLOCK STYLE MAGAZINE

The Glock magazine compatible dedicated 9mm lower receiver is gaining market share lately. It’s not surprising given the shear volume of Glock handguns in the field. An example of a Glock magazine dedicated 9mm AR lower would be Unbranded AR from Critical Capabilities. These Glock based 9mm AR-15 conversions typically have a magazine well sized for Glock magazines. These cannot accept standard AR-15 magazines.

DEDICATED 9mm AR-15 LOWER RECEIVERS – PROPRIETARY MAGAZINES

As far as I know only the Olympic Arms 9mm AR-15 System uses proprietary magazines.

Note – Most dedicated 9mm AR-15 lower receivers are stamped with the caliber “9mm”. In some jurisdictions this matters when complying with local laws.

CMMG 9mm AR-15 LOWER RECEIVERS

CMMG AR-15 9MM DEDICATED LOWER RECEIVER

Integral 9mm Mag Well Requires No Conversion Block

CMMG 9mm AR-15 LOWER RECEIVERS – Semi-auto lower receiver lets you build a dedicated 9mm AR that doesn’t look like a conversion—because it isn’t. The magazine well is machined to accept only Colt or modified Uzi-style 9mm magazines. Eliminates the need for a separate conversion block and the reliability problems that can result from converting a standard .223/5.56mm lower with add-on parts. Comes with feed ramp, bolt catch, and ejector all designed for best function with the 9mm pistol cartridge. Plus, the flush-fit mag well gives your gun a clean, uncluttered look. All holes, inletting, and pin locations have been machined to final dimensions. Add the trigger group, buttstock, and 9mm buffer/spring of your choice. Ideal for use with CMMG Enhanced 9mm Bolt/Carrier assembly, available separately. Machined from high-grade 7075 T6 aluminum billet that provides superb strength and rigidity. Hardcoat anodized, then Teflon® coated for excellent resistance to scuffs, scratches, surface abrasion, and discoloration from cleaning solvents and gun oils.

JP AR15 9mm LOWER RECEIVER KIT GMR 13

JP AR15 9mm Lower Receiver Kit GMR 13

The JP AR15 9mm Lower Receiver Kit GMR 13 is a great starting point for a new 9mm build. By accepting Glock G17 9mm magazines, this lower allows for the ultimate in sidearm & rifle compatibility. Combined with the JP 9mm AR-15 Bolt Carrier and Silent Captured Spring, you can have a unique 9mm build running smoothly and reliably. The lower fits standard AR-15 upper receivers, as well as grips, triggers and buttstocks. Large magazine release allows for quick magazine changes. Receiver includes magazine catch, ejector, bolt catch and necessary pins & springs. Does not include trigger group.

For the home builder with a 9mm project, this GMR-13 billet lower receiver accepts Glock G17 magazines and will mate to any Mil-spec compatible upper receiver. This kit includes all exclusive mag. catch, bolt catch and ejector components required for function.

JP AR15 9mm Lower Receiver Kit GMR 13

Whether as a complete carbine, upper or lower assembly, the GMR-13™ 9mm is a versatile platform that excels in both function and accuracy. The GMR-13™ is available with either our JP-15™ or PSC-11™ upper receiver for a blowback-operated carbine that includes our 9mm Silent Captured Spring standard. The end result is a system that cycles with virtually no recoil, allowing for extremely fast sight recovery with solid 3 MOA accuracy from a pistol cartridge usable out to 100 yards.

With the high-performance ammunition available from many manufacturers, the GMR-13™ makes a solid choice for a competitive match carbine (especially considering the cost savings of 9mm ammo over .223) and is also well-suited to home defense applications given its impressive .357 magnum-comparable ballistics with a carbine-length barrel. The lack of concussion in enclosed spaces and greatly limited over-penetration issues when compared to most rifle cartridges only enhance its suitability in this arena.

Designed from the start with the needs of law enforcement in mind, the GMR-13™ accepts the same G17 pistol magazines as Glock 9mm pistols for carbine/sidearm compatibility and is also available in select-fire configurations. Built on the PSC-11™ upper receiver platform with its dual charging systems, the GMR-13™ readily accommodates those with training backgrounds on either the HK or AR-15 platform. Also available for military and law enforcement, the complete rifle package includes our own JP select-fire trigger setup for precision trigger control in both semi- and full-auto modes. As with all JP rifles, the GMR-13™ comes with parts and service readily available from a trusted US manufacturer.

Olympic Arms K9-GL 9MM AR-15 Glock Lower

The Olympic Arms K9-GL 9MM AR-15 Glock Lower Receiver makes it to this list of 9MM AR lower receivers as a historical reference. Olympic Arms has announced it is closing it’s doors and going out of business. It’s unfortunate for many reasons but relative to this page Olympic Arms offered more pistol caliber AR-15 carbines and pistols than any other manufacturer. My .45 acp AR-15 is based on an Olympic Arms .45 upper and Olympic Arms dedicated AR-15 .45 acp magazines.